Dunno (the only thing I know about Slade is that Quiet Riot would never have been known without their covers of Slade tunes. I do think that Don Avan (Back Porch Jamboree) looks like an astronaut right before his oxygen is depleted.
Gentlemen, you can't fight in here--this is the war room.
That's the look I was going for. Watched some Slade stuff last night. Didn't realise they carried on as long as they did. And one of their later hits was completely ripped off by a more recent band. If I can remember it I'll post the name of the song and band.